Question

Write the number 1,900 in scientific notation

Answer 1

`1.9\cdot10^3`

Step-by-step explanation

`1900`

Calculating scientific notation for a positive integer is simple, as it always follows this notation:

`a\cdot10^b`

Step 1

To find a, take the number and move a decimal place to the right one position.

so

`1900\Rightarrow1.900\text{ }`

Step 2

Now, to find b, count how many places to the right of the decimal.

`1900\Rightarrow1.900\text{ ( 3 places)}`

Step 3

finally,

Building upon what we know above,

a= 1.9

b=3 (Since we moved the decimal to the left the exponent b is positive)

replace

`\begin{gathered} a\cdot10^b \\ a\cdot10^b=1.9\cdot10^3 \end{gathered}`

therefore, the answer i

`1.9\cdot10^3`

I hope this helps you